Initialize the JNI indirect reference table to make Valgrind happy.
Initialize the JNI indirect reference table to make Valgrind happy.

This eliminates the benign warning about the 'serial' field being
uninitialized.

Bug: 5542417
Change-Id: Ibce1df7fd1e340306982a8ec08d3cc38d6ab32a1

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst